"Boris’s New Year problem is that he is seen as increasingly out of touch," he said. Instead Ken was seen as more "in touch" with the concerns of ordinary voters, following his campaign against tube fare rises.

Commenting on the poll, London Labour MP Tessa Jowell said the results were "encouraging."

“Of course this poll is encouraging, but there will be many more polls between now and the real poll on May 3.

"The Labour campaign is one which is touching every doorstep, on every street in every borough across London and our promises to Londoners reflect their priorities in tough times.

"That’s why there is growing support for a different Mayor – one who is on their side and will cut their fares, not a part-time mayor who only stands up for a privileged few.